I think the value of a "front man" has been diminished in recent years. For example, the grunge movement in the early 90's (recent, in rock history terms) de-emphasized showmanship and looks, in favor of music.
I also just noticed David Bowie wasn't been mentioned in this discussion, although he didn't front a band, as per the OP's criteria. Great performer, though. And Iggy Pop was electric and just freakin' nuts.
I also just noticed David Bowie wasn't been mentioned in this discussion, although he didn't front a band, as per the OP's criteria. Great performer, though. And Iggy Pop was electric and just freakin' nuts.